Safety cage-chair.



' Nu. 667,780. A Patented lFeb'. l2',4 i901.

Y l) i M. w. JELmEK.

(Ali'plicaciw med my 2e, 1900.)

(No Model.)

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UNITED STATES OFFICE.

PATENT Y MATTHIAS W. JELINEK, OF BLACK HAWK, COLORADO, ASSIGNOR OF ONE-'THIRD TO WILLIAMII. DAVIS, OF SAME PLACE.

SAFETY CAGE-CHAIR.

SPECIFICATION forming part of Letters Patent No. 667,780, dated February12, 1901.

Application filed May 26, 1900.

To @ZZ whom it may concern:

Be it known that I, MATTHIAS W. JELINEK, a citizen of the United Statesof America, residing at Black Hawk,in the county of Gilpin and State ofColorado, have invented certain new and useful Improvements in SafetyCage- Ohairs; and I do declare the following to be a full, clear, andexact description of the in vention, such as Will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the characters ofreference marked thereon, which form a part of this specification.

My invention relates to improvements in safety cage-chairs formining-shafts of the class having chairs or supporting-dogs mounted onthe cage and arranged to be manipulated by the eager or person in chargeof the cage whenever it is necessary or desirable to stop.

The invention will now be described in detail, reference being made tothe accompanying drawings, in which is illustrated an embodimentthereof.

In the drawings, Figure 1 is an underneath view of a cage equipped withmy improvements. Fig. 2 is a section taken through the cage on the lineX X, Fig. 1, viewed in the direction of the arrow and showing theshafttimbers.

The same reference characters indicate the same parts in the views.

Let the numeral 5 designate the cage, to the bottom of which arejournaled two bars or axles 6, one near each end of the cage. The axles,as shown in the drawings, are square in cross-section,except at thebearings, of which eachaxle has three, two end bearings A A and anintermediate bearing B. Upon each of these axles are mounted and madefast two dogs 7, which form the chairs of the cage. The length of thesedogs is so regulated that when projected outwardly to a horizontalposition they engage the shafttimbers 8 at the Various stations orlevels which lie in their path, causing the cage to stop. (See Fig. landV full lines in Fig. 2.) When, however, these dogs are thrown to thedotted-line position, (see Fig. 2,) they hang down below the cage, whichis then allowed to move freely in the shaft. The mechanism for operatingthese dogs will now be described.

Upon the central portion of the bottom of the cage is journaled a shaft9, whose extremities protrude on opposite sides suflciently for theattachment of a crank 10 at either end of the shaft. The shaftextremities are square, as shown at 9a, to receive the crank, which isheld in place in any suitable manner, as by nuts l2. To this shaft aremade fast two short bars 13, each of which projects from the shaft inopposite directions, forming two cranks of equal length. Each of thecranks is connected with one extremity of a link 14, Whose oppositeextremity is connected with a projection 7a, formed on a dog 7. Hence itis evident that by giving the shaft 9 a partial turn in the onedirection or the other, as desired,` the axles 6 will be actuatedsuficiently to throw the dogs to either the full-line position ordotted-line position in Fig. 2. The turning ot' the shaft 9 may beaccomplished through the medium of the crank l0, which may be turned bythe cager or by the engineer through the instrumentality of a simpledevice (not shown) located at each level or station, the said operatingdevice being covered by a simultaneously-pending application.

The dogs 7 are held in the horizontal position by Virtue of lugs 6a,formed on the axle 6 and adapted to engage the bottom of the cage andprevent the axles from turning farther after the dogs 7 havereached thehorizontal position. Each dog'is'further locked against movement when inthe horizontal position by alshoulder 7?, which engages or abuts againstthe extremity of a rail 5ad on the bottom of the cage. When the dogs7are thrown to the vertical position, or the dotted-line position inFig. l, they are prevented from further inward movement by stops formedon the axles 6 and extending at right vangles to the lugs 6a, wherebythe dogs 7 are held in the vertical position, the said stops bearingagainst metal strips 5, secured to the bottom of the cage.

It will be understood that it will be impossible for the eager towithdraw the dogs from the horizontal position until the cage has beenraised from the wall-plates 8a of the timbers 8 sufficiently to allowthe dogs to swing to the dotted-line position. Hence when the dogs arethrown to the idle position the engineer must have complete control ofthe engine,th us preventing the Withdrawal of the dogs or chairs withouthis knowledge,which might result in accident by precipitating the cageto the bottom of the shaft. In case of accident to the brake or cable ofthe hoisting-engine, whereby the engineer loses control of the cage, thelatter may be stopped by the cager by throwing the chairdogs to thehorizontal po sition as heretofore explained.

When the chair-dogs 7 are in the position shown in full lines in thedrawings, they act as the rails on which the ore-car (not Shown) is runfrom the drift or tunnel onto the cage. Hence the dogs are in line withthe track-rails 5a on the iioor of the cage, and their extremities areturned outwardly to guide the car to its position on lthe rails of thecage.

Having thus described my invention, what I claim is l. In asafety-oage-chair construction, the combination with a cage, of dogspivotally mounted thereon and arranged to be thrown to a position toform chairs adapted to engage the wall-plates at the various levels, thelicor of the cage being provided with rails with which the dogs are inline, whereby the ears 3o from a tunnel or drift are guided by the dogsto the rails of the cage.

2. In a safety-cage-chair construction, the combination with a cage, ofdogs movably mounted thereon and arranged to su pport a cage at thevarious drifts or levels, the said dogs when in the cage-supportingposition, lying in the plane of the cage-oor and the bottom of the driftor tunnel, whereby the dogs form guides to facilitate the running of thecar from the drift to its position on the cage.

3. In a safety-oage-chair construction, the combination with a cage, ofdogs movably mounted thereon and arranged'to support a car at thevarious drifts or levels, the said dogs when in the cage-supportingposition, lying in the plane of the cage-floor and the bottoni of thedrift or tunnel, the free eX-A tremities of the dogs being turnedoutwardly to facilitate the moving of the car from the drift to itsposition on the cage.

In testimony whereof I afx my signature in presence of two witnesses.

MATTHIAS IV. JELINEK. Witnesses:

W. P. KNAPP, THOMAS BATEr

